| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advancing Current and State-of-the-Art Application of Ni- and Co-based Superalloys
|
| Presentation Title |
Competing Mode of Failure Predictions in a Ni-based Superalloy using Crystal Plasticity Finite Element Simulations |
| Author(s) |
Ritwik Bandyopadhyay, Michael Sangid |
| On-Site Speaker (Planned) |
Ritwik Bandyopadhyay |
| Abstract Scope |
Two competing failure modes, namely inclusion- and matrix-driven failures, are observed in Ni-based superalloys which are subjected to fatigue loading. In the present work, the emergence of the failure mode is predicted in a powder metallurgy produced Ni-based superalloy using the plastic strain energy density stored within the material and accounting for multiple factors influencing the two failure modes. In particular, crystal plasticity finite element simulations and a Bayesian inference framework are used to compute the microstructure-sensitive critical plastic strain energy density, associated with fatigue failure, for the material, as a function of loading conditions including multiple strain amplitudes and temperatures. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |